Period I, Q (m³/s)

Period II, Q (m³/s)

Rainy

Dry

Rainy

Dry

Mean

0.82

0.48

0.22

0.13

Variance

1.05

0.53

1.19

0.02

SD

1.02

0.73

0.31

0.22

N(months)

52

44

60

37

SEM

0.14

0.11

0.04

0.03

Ho

A

R

Df

94

95

T statistic

1.8377

2.3552

P(T < t) 2 tail

0.0693

0.0206

Z statistic

4.60

3.98

4.78

4.77